CoStar Group (CSGP) stock

Property data, listings , market cap $11B

Property data, listings

Market cap $11B

$31.82

+5.47%

After-hours $31.46 -1.13%

As of 4:03 PM ET after-hours, delayed 15+ min · Live for Pro members

Why is CSGP down?

Up 5.5% today with business services stocks: Paymentus Holdings rose 6.8% after its report; 56 of 67 are up, 2.0% on average; the S&P 500 is down 0.3%.

Fell on Oct 28

Down 14% on Oct 28, and still 6% under its Oct 27 close.

It reported quarterly revenue of $952.0M and diluted EPS of $0.18 after the close on Oct 27.

Sources: Price history, Oct 28, 2026; SEC filing, Oct 27, 2026

−3Long-term trend below a falling 200-day average, down over one year, down over two years

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1 more reason, free with an account →3 more reasons why CSGP fell on Oct 28, from its filings, with the other side, the timeline, and its peers, for Pro members.

Quality Score

Below Average

In its industry

#45of 67

Business Services

Checks firing

3of 14

Trending down

From 52-week high

-54.9%

Below the 200-day

CSGP's Quality Score rose 2 points on Fri, Oct 30, to 4. Traded heavy volume (2 chart checks started).

See CSGP's 14 chart checksSee it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

We do the work for you. Every stock is scored and ranked, every 15 seconds while the market is open. Here it's 15 minutes behind. Pro members see it live.

Key facts on CSGP

Key facts on CSGP
Since its 2024 high	Down 69% profit $375M → $73.6M a year
Latest filing	8-K, Oct 27 Signed a material agreement and reported its quarterly results

1 more reason behind CSGP's 4, free with an account →4 more reasons behind CSGP's 4, for Pro members.

CSGP in the news

TodayWith its group.

Big story

Deal

CoStar Group to acquire aerial imagery provider for $730M

CSGP closed −14.0% that day on 2.9x normal volume.

Reported by bizjournals.com · covered by 12 outlets

Get an alert on CSGP's next big story →

Outlet counts from the GDELT Project. The move is what CSGP did that session, not a claim about why.

What's next

Tue Nov 10: BMO Financials Conference 2026Investor conference · date confirmed.

5 more dates ahead: conferences, for Pro members.

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

CSGP catalysts

Coming up

After its last 4 reports it closed -7.4% on average, higher 0 of 4 times.

42 past catalysts since 2018, with sizes and sources, for Pro members.Get in free →

Here is what Pro members see.

The same page for Pro members, on AMD
Its Quality Score and rank, the line that drives it, and the live price.
The full chart
A year of candles to start, out to the whole history, with insider trades marked and the Quality Score under the price.
Every line of the score
Price action, the company, and signals, each with its points, on CSGP and every other stock.
CEOs buying their own stock
Every CEO buy, biggest names first. Sort, filter, save the list, and set optional alerts.
Congress trades
A member's trades, newest first, each with its amount. Sort and filter the whole list.
14 chart checks, read for you
The ones firing on the stock, each in plain words, its rule a tap away.
Earnings, week by week
Who reports each day, and how each stock took its last four reports.
FDA dates, counted down
Each date in the company's words, its cash against the date, and an optional alert before it.
The market map
Every stock a box, colored by its Quality Score.
Themes, ranked live
Each theme's stocks ranked by Quality Score, live. Here, AI chips.
The top 10, every day
The ten highest Quality Scores at each close, kept day by day, week by week.
Optional alerts, your way
Pick a stock, a score, a price, a filing, or a whole scan. It tells you by push or email.
Your watchlist, scored
Your stocks by Quality Score, today's move, or name.
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The same account and watchlist on both, each laid out for its screen.

Prices refresh every 2.5 seconds during market hours.
Optional alerts by push, email, or the bell.
Add it to your Home Screen and it opens like an app.

CSGP has 3 of 14 chart checks firing

Trend1 of 5 shown

MA FAN 21 EMA W.EMA HH/HL 52W HI

Volume1 of 3 shown

VOL VDU U/D VOL

Tight range1 of 3 shown

ATR SQZ SQUEEZE NR7

Buying1 of 3 shown

OBV+CLOSE HI SPRING

The other 10 checks on CSGP, and all 14 on every stock.Get in free →

CSGP RSI today: 53.8, above its 50-day, below its 200-day

Not scored

Not in the Quality Score: over 20 years of tests, 2006 to 2026, they added no edge.

RSI 1453.8
Above 50, below 70.
MACD (12, 26, 9)Below signal
Crossed below its signal line 3 sessions ago.
50-day average$30.32
The price is 4.9% above it.
200-day average$36.51
The price is 12.8% below it.
50/200 crossDeath cross
The 50-day crossed below the 200-day on Nov 7, 2025.
ADX 1426.4
25 or more, with +DI above -DI.
Support$31.70
Swing low from Jun 2, 0.4% below the price.
Resistance$31.82
Swing high from Sep 14, 0.0% above the price.
52-week high$70.62
From Nov 5, 2025, 122.0% above the price.
52-week low$25.89
From Jul 29, 18.6% below the price.
Chart patternNone
No triangle, channel, or wedge in the last year.
Bollinger Bands (20, 2)Inside
The bands run from $26.46 to $35.42.
Volume0.8x
Against its 20-day average, for the time of day.

The deep dive on CSGP

What it does and how it makes money3 findingsFor Pro members3 findings on what CSGP does and how it makes money, for Pro members
Where it stands4 findingsFor Pro members4 findings on where CSGP stands: its cash, debt, and share count, for Pro members
What changed in its filings1 findingBacklog rose 26% in a year, to $599M on Jun 30, 2026 from $476M: sales under contract, not yet delivered.Filed figures, Jun 30, 2026
Who holds and trades it5 findingsInsiders bought $2.49M and sold $253K of shares on the open market in 90 days; the largest, CEO Andrew C. Florance, bought $2.49M on Aug 4, 2026.Form 4, filed Aug 5, 2026
Against its closest peers3 peersNet income over four quarters: CSGP $73.6M, MSCI $1.38B, AMTM $204M, ZG $55.0M.

11 more findings on CSGP, each with its source, for Pro membersGet in free →

How CSGP ranks in Business Services

CSGP is #45 of 67 by Quality Score among Services-⁠Business Services.

How CSGP ranks in Business Services
1	FLYWFlywire Corporation Voting	10/14	21
2	MAMastercard	7/14	21
3	MAXMediaAlpha	9/14	19
	CNDTConduent		Open for its score
	CPAYCorpay		Open for its score
	DASHDoorDash		Open for its score
	EBAYeBay		Open for its score
45	CSGPCoStar	3/14	4

Net income over four quarters: CSGP $73.6M, MSCI $1.38B, AMTM $204M, ZG $55.0M.

More in Business Services, on the Real Estate page

When does CSGP report earnings, and what happens after?

Expected to report Tue Feb 23, after the close (in 113 days). Expected.

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

What CSGP reported on Oct 27, 2026

The quarter

Sales of $1.0B, 14% more than a year ago; a profit of $0.18 a share, from a loss of $0.07.

The quarter that ended Sep 30, from the company's press release

The press release The filing on EDGAR

Where the sales came from

CSGP's results filing gives no sales by line in a table we read.

The outlook

The outlook the company gave, by period
Measure	Figure
Full year 2026
Revenue	$3.75B to $3.77Braised

Figures as filed (SEC filing, Oct 27)

5 more outlook lines, for Pro members.

The numbers

Market value: $11B; today
Sales: $3.6B; up 22% on the year
Free cash flow: $280M; last 12 months

Sales grew 14% a year over 5 years, fiscal 2020 to 2025.

Its share count grew 1.9% a year over 5 years.

5 more figures, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on CSGP: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.Get in free →

-5.1%-1.6%-14.0%

Apr 28Jul 28Oct 27

Reported	When	Gap	Reaction	5 sessions
Oct 27, 2026After close	After close	-6.3%	-14.0%	open
Jul 28, 2026After close	After close	-14.2%	-1.6%	-1.7%
Apr 28, 2026After close	After close	-0.9%	-5.1%	-3.0%

CSGP closed higher after 0 of its last 4 reports.

All 4 reports, and CSGP's Quality Score going into each

CSGP sales and profit by year

Sales and profit by year

Sales grew every year from 2018 to 2025, to $3.2B. It made a profit in each of the eight years.

Insiders trading CSGP

CSGP insider trades

One insider bought $2.5M across 1 filing, and 2 insiders sold $253K across 2 filings, in the last 6 months. The newest:

SellCynthia Cammett Cann$147KChief Accounting Officerat $30.78 on Aug 7, filed Aug 10

SellCynthia Cammett CannChief Accounting Officer$147Kat $30.78 on Aug 7, filed Aug 10

All 3 insider filings on CSGP from the last six months, for Pro members.Get in free →

All CSGP insider trades

CSGP trades by Congress and the executive branch

22 trades disclosed in the last six months. The newest:

BuyRohit Khanna$1K to $15KHousetraded Sep 25, disclosed Oct 7(12 days later)

BuyRohit KhannaHouse$1K to $15Ktraded Sep 25, disclosed Oct 7(12 days later)

All 22 trades on CSGP disclosed by Congress and the executive branch, for Pro members.Get in free →

See what Congress is buying across the market

CSGP's officers and directors

Officers and directors with a Form 4 in the last 12 months.

Andrew C. FloranceFounder and CEO · 4 trades
Christian M. LownChief Financial Officer
Robin Jack RossmannChief Financial Officer
Cynthia Cammett CannChief Accounting Officer · 2 trades
G. Saint FrederickPresident, Marketplaces · 1 trade
Frank SimuroChief Technology Officer
Gene BoxerGeneral Counsel and Secretary
Lisa RugglesSenior VP, Global Operations

8 more officers and directors file at CSGP. Each page above names the rest.

See insider trades by person

Which ETFs hold CSGP?

In ETFs: CSGP is 0.7% of VNQ, under 0.1% of SPYI, and under 0.1% of IVV, the most of the 24 funds Breakaway covers, by each fund's latest filing, Jun 30 to Jul 31, 2026.

About CoStar Group

CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.

8,000 employeesArlington, VAcostargroup.com

What CoStar Group says it competes with

“The market for real estate-focused online marketplaces, information, and analytics generally is competitive, dynamic, and is constantly evolving as a result of technological advancements, customer preferences, and new products and offerings.”

From its annual report, SEC filing · Feb 26, 2026

2 more sentences and what it says it does, for Pro membersGet in free →

CSGP's score card

CoStar Group (CSGP): Quality Score 4, Below Average, #45 of 67 in Business Services, with its price, on Breakaway — The picture a link to this page shows when it is shared.

Pro members see every line of every stock's score.

What would turn CSGP's score around: 6 things
2 more filings explained, a plain line each
1 more thing pulling CSGP's score down

BreakawayOct 7Rohit Khanna bought CSGP$1K to $15K, disclosed Oct 7

Alerts are optional.

See CSGP's 14 chart checks

See it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

Straight Answers

As of Nov 2, 2026: CSGP's Quality Score is 4 (Below Average), #45 of 67 in Services-Business Services. Insiders bought $2.5M and sold $253K in the last 6 months (Form 4).

Is CSGP a good stock to buy? What its Quality Score says

CSGP scores 4 today, which Breakaway calls Below Average. It is #45 of 67 in Services-⁠Business Services by Quality Score, with 3 of 14 chart checks firing. Down 14% on Oct 28, and still 6% under its Oct 27 close. Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is CSGP's Quality Score?

CSGP scores 4 today, which Breakaway calls Below Average (0 to 5). That is #45 of 67 in Services-⁠Business Services by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind CSGP's 4.

Are insiders buying CSGP?

One insider bought $2.5M across 1 filing, and 2 insiders sold $253K across 2 filings, in the last 6 months. The newest is Cynthia Cammett Cann, Chief Accounting Officer, who sold $147K on Aug 7. Every filing, with the scored weight, for Pro members.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.